ELECTROTHERMAL VAPORIZATION OF TRACE GALLIUM VIA IN-SITU ALKYLATION FOR INDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION-SPECTROMETRY

被引：9

作者：

KUMAMARU, T

TAO, SQ

UCHIDA, M

OKAMOTO, Y

机构：

[1] Department of Chemistry, Faculty of Science, Hiroshima University, Higashi-Hiroshima

来源：

ANALYTICAL LETTERS | 1994年 / 27卷 / 12期

关键词：

INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROMETRY; ELECTROTHERMAL VAPORIZATION; IN SITU ALKYLATION; GRIGNARD REACTION; ETHYLGALLIUM; GALLIUM;

D O I：

10.1080/00032719408005986

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A sample introduction method based on alkylation of the analyte was proposed for introducing trace gallium into inductively coupled plasma for atomic emission spectrometry. By using 10 mu l of a sample solution with 15 mu l of a 0.9 mol l(-1) solution of ethylmagnesium bromide in tetrahydrofuran as alkylating reagent, a detection limit of 1.9 ng of gallium was obtained and the calibration graph was linear with the amount of gallium up to 100 ng. The relative standard deviation (n = 10) was 2.0% when 10 ng of gallium was present in the sample.

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页码：2331 / 2339

页数：9

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